Question

Study the following flowchart carefully and identify the correct answer:

• A. K - Polystyrene; L - Bakelite; P - Teflon; Q - PVC
• B. K - PVC; L - Teflon; P - Melamine; Q - Bakelite
• C. K - Polythene; L- Polystyrene; P - Bakelite; Q - PVC
• D. K - PVC; L - Polythene; P - Bakelite; Q - Melamine

Answer 1

The correct option is B K - PVC; L - Teflon; P - Melamine; Q - Bakelite

Plastics are generally classified as thermoplastics and thermosetting plastics.
Thermoplastics have linear arrangement of monomer units. On heating, thermoplastics gets easily deformed and can be reshaped.
Thermosetting plastics have a crosslinked arrangement of monomer units. On heating, thermosetting plastics cannot be easily deformed.
PVC is used as covering for electric wires and teflon is used as a non-stick coating on cookwares.
Melamine is used as coating the uniforms of firemen, bakelite is used for making electrical switches and handles of utensils.